Past Speakers and Sponsors
Meeting Topic Speaker Sponsor
11-14-11
Building the Mercedes Mine
Sonora, Mexico
Construction of the Mercedes Mine is six months ahead of schedule with the first gold pour and operations starting by year end with commercial production expected by mid-2012. Gold will be extracted by agitated leaching with counter current decantation and Merrill-Crowe processing. As of 9/30/2011, overall physical advancement of the project was 94% complete with ~90% of budget costs committed. The project advances toward completion with the power line installation in the third quarter & with the advancement of plant construction, structural, mechanical & piping installation & commissioning activities. Yamana continues to advance the development of the Barrancas zone, a high grade area at Mercedes, which was not part of the feasibility study. This zone could potentially enhance production at Mercedes, initially expected to produce ~120,000 gold equivalent ounces with the potential to increase to 150,000 GEO/year in 2014. Yamana anticipates continued exploration success will increase the mine life & annual production.
William "Butch" Wulftange
Director of Exploration and Business Development

Gerardo Fernandez



Kaitlin Sweet
10-10-11
Hycroft Deposit
Humbolt and Pershing Countys, Nevada
The Hycroft deposit is a world class gold-silver deposit located ~50 miles west of Winnemucca, NV. The deposit is a low sulfidation, epithermal hot springs system, with elevated gold, silver, and sulfur values. Gold mineralization is typically disseminated throughout the rock mass, with an average grade of 0.014 ozAu/st (0.48 gpt). However, high grade gold has been noted in upper level sulfide veins and deeper banded veins, with up to 8.8 ozAu/st ( gpt) reported. Silver mineralization is both disseminated, fracture controlled, and vein associated. Silver values average 0.71 ozAg/st (24.3 gpt); however, values up to 647.5 ozAg/st (22,200 gpt) have been reported. Current proven and probable reserves are 196 Mt grading 0.013 ozAu/st and 0.25 ozAg/st (2.6 Moz Au and 49.3 Moz Ag). Total measured and indicated resources, exclusive of reserve are currently 620 Mt grading 0.014 ozAu/st and 0.71 ozAg/st (8.8 Moz Au and 438.017 Moz Ag), there is an additional 181.0 Mt grading 0.015 ozAu/st and 0.56 ozAg/st of inferred resource. Production at Hycroft began in 1983, and life of mine production (through 2010) is 89.6 Mt ore placed, with 1.8 Moz gold and 1.7 Moz silver poured. All production has been cyanide heap leach of both crushed and ROM material with life of mine pad recoveries estimated at 56% gold and 12% silver.
      The deposit model is an epithermal hot springs system that vented to the surface ~4 Ma. The Bay area contains evidence of upper level sinter and reed casts, where the system vented along a prehistoric lake shore. This material transitions downwards into intensely silicified and brecciated zones, which reflect continued hot springs activity, over pressuring, and subsequent brecciation. Multiple events of silicification and brecciation are noted in the Vortex area.
      The mineralizing event was followed ~0.4 to 2.0 Ma by an intense acid leaching event as a result of outgassing of the hot springs system. This allowed the formation of sulfuric acid, which leached the upper portion of the deposit. The acid leach zone, noted at both Central and Brimstone, is underlain by a zone of intense silicification, with propylitic, and argillic alteration marginal to the deposit. The acid leach zone also contains large areas of native sulfur deposits. Oxidation of the original sulfide mineralization is variable in depth, depending upon the water table, proximity to faults, and extent of acid leaching. Sulfide content in the unoxidized material is variable, averaging 1.5-2.0% in mineralized material, with up to 11% sulfide sulfur in assays.
      The deposit is hosted in both Tertiary Camel Conglomerates and Kamma Mountain Volcanics, which were formed during the Miocene to Quaternary. Jurassic aged Auld Lang Syne forms the underlying basement rock, and drilling has not penetrated out of this formation at depth. Lacustrine sediments associated with Lake Lahontan overlie the deposit along the west side. The stratigraphy is down dropped to the west, along a series of north to northeast trending normal faults, which served as both feeders and structural offset to mineralization. Discontinuous E-W trending normal faults intersect the N-S south fabric, and provide a series of horst and grabens within the deposit.
      At present the Hycroft Mine has placed approximately 3.22 Moz gold and 13.8 Moz silver under leach since 1983, and the geologic resource is estimated at approximately 14 Moz gold and 588 Moz silver. Exploration continues to expand the resource with increase in gold and silver resources of approximately 90% and 77% respectively from 2009-2010.
Don Harris and Mark Gorman

James Bellegante

3303 North Sullivan Road
Spokane, WA 99216
509-928-3333
9-12-11
CHINESE MONEY ON THE MOVE...
How will this economic "juggernaut" affect the U.S. minerals industry?
            China’s outbound direct investment is on the fast track and in the next decade trillions of U.S. dollars are poised to be invested worldwide by Chinese companies. Outbound direct investment (ODI) into resources is clearly a Chinese mandate, but not only because of the country’s rampant resources consumption. Money must leave China, and for a number of reasons the resources sector is a good fit for ODI. Is the United States on the list for fast-tracked and significant investment into minerals projects? What can we expect and what should we be prepared for?
            Elaine Herron, an exploration geologist, has spent the last 13 years of her career living and working with her husband Cal in China, specializing in minerals project generation and management for foreign and domestic mining and exploration companies. In the process of innovating new business structures for foreign companies the Herrons interface on many levels with Chinese government agencies.
            Elaine has witnessed dramatic changes in how the Chinese government views domestic minerals development, how they manage foreign direct investment (FDI) into their own industries, and how they’re implementing outbound investment policies in the resources sector. She will be offering insight into:
  • Where Chinese ODI is headed and why.
  • The status of China’s domestic minerals industry and foreign involvement.
  • Chinese investment into the U.S. minerals industry and possible implications.
  • The significant differences between Western and Chinese minerals exploration and mining practices. Why it’s important for U.S. companies to understand the differences.
  • How U.S.-based companies can access Chinese money and how to form effective partnerships with Chinese companies.
Elaine Herron
Quest Geological Consultants; Reno, Nevada
Beijing Kewen Minerals Consulting Limited; Beijing, P. R. China

elainelherron@yahoo.com

Along with their Chinese partners, the Herrons currently own and operate Beijing Kewen Minerals Consulting Limited, a geological consulting firm located in Beijing. Cal and Elaine have also maintained their Reno-based company, Quest Geological Consultants, conducting worldwide minerals exploration, project management, and business development for numerous resource companies over the past 30 years.

Darrell Tweidt
Business Development Manager
North American Rotary
3707 Manzanita Lane
Elko, NV 89801
775-753-8710
5-9-11 The Good and The Ugly of Oil Development
An overview of environmental protection progress in Alaska and the Gulf of Mexico BP spill. Ken learned about communication electronics from the Army, earned a EE degree and worked for Texas Instruments for three years. While at TI he earned an MBA and then went to work for ARCO Oil and Gas Company. After 2 years in the Gulf of Mexico, the next 24 years were spent in Alaska. He worked in finance, construction, production, materials, Fire and Safety, Environmental permitting, auditing, and retired in 2007 after several years as the ConocoPhillips Alaska Vice-president of Health, Safety, Environmental, Emergency Response and Native Community Relations. He was directly involved in four state legislative bills that were passed in Alaska and joined the Polar Bear Club in 2002 by swimming in the Arctic Ocean.
Ken Donajkowski
Conoco Phillips, retired 2008

Sarah Lightner
4-11-11 Hydro-Jex: Heap Leach Pad Stimulation Technology
The Hydro-Jex technology has been used on Newmont Mining's gold heap leach pads on the Carlin Trend for three years to recover the inventory gold and change the chemistry in the pads. This research and development patented process is complete with the resultant data presented. Information on drill sampling, geophysical surveying, followed by leach pad stimulation with impacts on solution chemistry and gold recovery are discussed. Can this technology be used to rinse and close heap leach pads faster with reduced pump energy costs and improved recovery?
Professor Thom Seal, Ph.D.
Mackay School of Mines

Tom John
3-14-11 Pebble Project
The potential for a mine at the Pebble Deposit located in Southwest Alaska has captured the attention of the mining industry and nearly all Alaskans. This world class copper, gold, and molybdenum deposit has brought a major public policy decision to the forefront in Alaska about mining, its legacies, and its role in the modern economy. There is a well-funded, organized campaign to stop the development , but there is also equal interest in the opportunities it could bring. Pebble Partnership CEO John Shively will share his views about one of the most interesting prospects in mining today.
John Shively, CEO

Mike Lortie
2-14-11 Copperstone Project
American Bonanza Gold Corp. (BZA.TO) will re-open the Copperstone Mine in La Paz County, Quartzsite, Arizona. Speakers Joe Fabrizio (Geologist) and Todd Fayram (Engineer) will discuss the geology, mining economics of Copperstone. The talk will include the geologic background of Copperstone, the economics of the high grade gold, mining methods of extraction, and the gold recovery technique.
Joe Fabrizio

David Carlson
1-10-11 Afghanistan Geology, Exploration and Mining:
Ending the War and Getting the Army Out
Alex Chaihorsky
Senior Advisor to the US Department of Defense
Chief of Exploration for DOD & USGS mining & exploration projects in Afghanistan

Clark West, Western Region Manager
2000 E. Newlands Dr.,
Fernley, NV 89408
11-8-10 Autonomous Vehicle Technology in Mining:
How It Works, How It’s Applied, and When It's Coming
Mel Torrie

email Chris Brown

Scott Manoukian
10-11-10 Yucca Energy Park
John Dunn

Judi Tallman
9-13-10 Tim Arnold
General Moly Corp
Mount Hope Mine
Eureka County, Nevada

Tim Arnold
Last updated August 27, 2011